# Svelte changelog ## 2.7.1 * Fix spread props with multiple dependencies ([#1515](https://github.com/sveltejs/svelte/issues/1515)) ## 2.7.0 * Add `__svelte_meta` object to elements in dev mode, containing source info ([#1499](https://github.com/sveltejs/svelte/issues/1499)) * Fix `bind:online` in dev mode ([#1502](https://github.com/sveltejs/svelte/issues/1502)) * Update v1 warnings/errors ([#1508](https://github.com/sveltejs/svelte/pull/1508)) * Transform prefixed keyframes ([#1504](https://github.com/sveltejs/svelte/issues/1504)) ## 2.6.6 * Fix nested transition bug ([#1497](https://github.com/sveltejs/svelte/issues/1497)) ## 2.6.5 * Handle cases where only some `if` block branches have outros ([#1492](https://github.com/sveltejs/svelte/issues/1492)) ## 2.6.4 * Web worker support ([#1487](https://github.com/sveltejs/svelte/issues/1487)) * Update dynamic component bindings when component changes ([#1489](https://github.com/sveltejs/svelte/issues/1489)) ## 2.6.3 * Nested transitions respect `skipIntroByDefault` ([#1460](https://github.com/sveltejs/svelte/issues/1460)) * Always create outro for top-level block ([#1470](https://github.com/sveltejs/svelte/issues/1470)) ## 2.6.2 * Fix spread+bindings on dynamic components ([#1433](https://github.com/sveltejs/svelte/issues/1433)) * Abort in-progress animations, if a new one starts ([#1458](https://github.com/sveltejs/svelte/issues/1458)) * Allow animations to be parameterised ([#1462](https://github.com/sveltejs/svelte/issues/1462)) ## 2.6.1 * Absolutely position outroing animated nodes ([#1457](https://github.com/sveltejs/svelte/pull/1457)) ## 2.6.0 * Add `animate` directive ([#1454](https://github.com/sveltejs/svelte/pull/1454)) * Add `skipIntroByDefault` compiler option and `intro: true` init option ([#1448](https://github.com/sveltejs/svelte/pull/1448)) * Add `nestedTransitions` compiler option ([#1451](https://github.com/sveltejs/svelte/pull/1451)) * Component outros, if `nestedTransitions` is true ([#1211](https://github.com/sveltejs/svelte/issues/1211)) * Allow transition functions to return a function, for inter-transition coordination ([#1453](https://github.com/sveltejs/svelte/pull/1453)) * Pass `1 - t` as second argument to transition functions ([#1452](https://github.com/sveltejs/svelte/pull/1452)) ## 2.5.1 * Add new ARIA attributes ([#1436](https://github.com/sveltejs/svelte/pull/1436)) * Add `Promise` to whitelisted globals ([#1441](https://github.com/sveltejs/svelte/issues/1441)) * Allow spaces around reserved keyword attributes ([#1445](https://github.com/sveltejs/svelte/issues/1445)) ## 2.5.0 * Support transitions in `await` blocks ([#956](https://github.com/sveltejs/svelte/issues/956)) * Abort outros if block is recreated ([#1425](https://github.com/sveltejs/svelte/issues/1425)) * Wait until transitions have completed before removing styles ([#648](https://github.com/sveltejs/svelte/issues/648)) * Support event shorthand on dynamic components ([#1427](https://github.com/sveltejs/svelte/pull/1427)) * Various codegen improvements ([#1419](https://github.com/sveltejs/svelte/pull/1419), [#1421](https://github.com/sveltejs/svelte/pull/1421), [#1422](https://github.com/sveltejs/svelte/pull/1422), [#1424](https://github.com/sveltejs/svelte/pull/1424)) * Correctly handle `await` blocks with no dynamic content ([#1417](https://github.com/sveltejs/svelte/issues/1417)) * Allow spread props on elements with static attribute tests ([#1429](https://github.com/sveltejs/svelte/pull/1429)) ## 2.4.4 * Declare missing variable in Store ([#1415](https://github.com/sveltejs/svelte/issues/1415)) * ALways declare spread levels ([#1413](https://github.com/sveltejs/svelte/issues/1413)) ## 2.4.3 * `ref` directives prevent HTMLified content ([#1407](https://github.com/sveltejs/svelte/issues/1407)) * Store computed properties update components immediately upon declaration ([#1327](https://github.com/sveltejs/svelte/issues/1327)) ## 2.4.2 * Evaluate `each` key in child scope ([#1397](https://github.com/sveltejs/svelte/issues/1397)) * Prevent false negatives and positives when detecting cyclical computed store properties ([#1399](https://github.com/sveltejs/svelte/issues/1399)) * Only update dynamic component props ([#1394](https://github.com/sveltejs/svelte/issues/1394)) ## 2.4.1 * Fix DOM event context ([#1390](https://github.com/sveltejs/svelte/issues/1390)) ## 2.4.0 * Integrate CLI ([#1360](https://github.com/sveltejs/svelte/issues/1360)) * Allow arbitrary destructuring for each block items, with binding ([#1385](https://github.com/sveltejs/svelte/pull/1385)) * Each block keys can use arbitrary expressions ([#703](https://github.com/sveltejs/svelte/issues/703)) * `bind:offsetWidth`, `bind:offsetHeight`, `bind:clientWidth` and `bind:clientHeight` ([#984](https://github.com/sveltejs/svelte/issues/984)) * Leaner generated code for `each` blocks ([#1287](https://github.com/sveltejs/svelte/issues/1287)) ## 2.3.0 * Allow computed properties to have entire state object as dependency ([#1303](https://github.com/sveltejs/svelte/issues/1303)) * Fix `stats` when `options.generate` is `false` ([#1368](https://github.com/sveltejs/svelte/issues/1368)) * Assign custom methods to custom elements ([#1369](https://github.com/sveltejs/svelte/issues/1369)) * Fix `this` value in custom event handlers ([#1297](https://github.com/sveltejs/svelte/issues/1297)) * Re-evaluate `each` values lazily ([#1286](https://github.com/sveltejs/svelte/issues/1286)) * Preserve outer context in `await` blocks ([#1251](https://github.com/sveltejs/svelte/issues/1251)) ## 2.2.0 * Internal refactoring ([#1367](https://github.com/sveltejs/svelte/pull/1367)) ## 2.1.1 * Report initial `changed` based on state, not expected props ([#1356](https://github.com/sveltejs/svelte/issues/1356)) * Set state to empty object, not null, on destroy ([#1354](https://github.com/sveltejs/svelte/issues/1354)) * Prevent stale state in component event handlers ([#1353](https://github.com/sveltejs/svelte/issues/1353)) ## 2.1.0 * Allow shorthand imports ([#1038](https://github.com/sveltejs/svelte/issues/1038)) * Update spread props inside each blocks ([#1337](https://github.com/sveltejs/svelte/issues/1337)) ## 2.0.0 *See [the blog post](https://svelte.technology/blog/version-2) for information on how to upgrade your apps* * New template syntax ([#1318](https://github.com/sveltejs/svelte/issues/1318)) * Emit ES2015 code, not ES5 ([#1348](https://github.com/sveltejs/svelte/pull/1348)) * Add `onstate` and `onupdate` hooks, remove `component.observe` method ([#1197](https://github.com/sveltejs/svelte/issues/1197)) * Use destructuring syntax for computed properties ([#1069](https://github.com/sveltejs/svelte/issues/1069) * Change signature of `svelte.compile` ([#1298](https://github.com/sveltejs/svelte/pull/1298)) * Remove `validate` and `Stylesheet` from public API ([#1348](https://github.com/sveltejs/svelte/pull/1348)) * Don't typecast numeric attributes ([#657](https://github.com/sveltejs/svelte/issues/657)) * Always compile with `Store` support, and cascading disabled ([#1348](https://github.com/sveltejs/svelte/pull/1348)) * Remove unused `hash` property from AST ([#1348](https://github.com/sveltejs/svelte/pull/1348)) * Rename `loc` property to `start` in warnings and errors ([#1348](https://github.com/sveltejs/svelte/pull/1348)) ## 1.64.1 * Fix computed properties in SSR renderer ([#1349](https://github.com/sveltejs/svelte/issues/1349)) ## 1.64.0 * Deprecate passing a string argument to `component.get` ([#1347](https://github.com/sveltejs/svelte/pull/1347)) ## 1.63.1 * Allow `observe` method to be overwritten ## 1.63.0 * Add `onstate` and `onupdate` lifecycle hooks and deprecate `component.observe` ([#1197](https://github.com/sveltejs/svelte/issues/1197)) * Add `on` and `fire` to `Store`, deprecate `onchange` and `observe` ([#1344](https://github.com/sveltejs/svelte/pull/1344)) * Require computed properties to have destructured argument in v2 mode ([#1069](https://github.com/sveltejs/svelte/issues/1069)) ## 1.62.0 * Add a `code` field to errors and warnings ([#474](https://github.com/sveltejs/svelte/issues/474)) * When using v2 syntax, do not use interpolation in non-root `